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Nitrogen-fixation strategies and Fe requirements in cyanobacteria
Nitrogen-fixation strategies Fe requirements
2014/4/22
Diazotrophic (nitrogen-fixing) cyanobacteria are important contributors of new nitrogen to oligotrophic
environments and greatly influence oceanic productivity. We investigated how iron availability ...
Iron requirements of the pennate diatom Pseudo-nitzschia: Comparison of oceanic (high-nitrate, low-chlorophyll waters) and coastal species
pennate diatom Pseudo-nitzschia oceanic coastal species
2014/5/5
We quantified and compared physiological parameters and iron requirements of several oceanic Pseudonitzschia spp., newly isolated from the high-nitrate, low-chlorophyll waters of the northeast subarct...
Copper requirements for iron acquisition and growth of coastal and oceanic diatoms
Copper requirements for iron acquisition growth of coastal oceanic diatoms
2014/5/9
Centric diatoms isolated from open ocean environments require higher concentrations of Cu for growth than their coastal counterparts. In artificial seawater medium containing <1 nmol L-1 Cu, three coa...
Mineral grains in caddisfly pupal cases and streambed sediments: Resource use and its limitation through conflicting resource requirements
Mineral grains caddisfly pupal cases streambed sediments conflicting resource requirements
2014/5/9
Sand and fine gravel in streambed sediments are considered to be an overabundant resource for caddisflies that build cases from it. However, larvae of Rhyacophila and Hydropsyche build pupal cases wit...
Uptake of dissolved organic matter (DOM) and its importance to metabolic requirements of the zebra mussel, Dreissena polymorpha
dissolved organic matter metabolic requirements zebra mussel Dreissena polymorpha
2014/5/8
We determined the rates at which Dreissena polymorpha assimilated radiolabeled acetate, monosaccharides, amino acids, and fatty acids at environmental concentration levels. The mussels incorporated al...
Nitrogen and phosphorus requirements of an Alexandrium minutum bloom in the Penzé estuary, France
Nitrogen and phosphorus Alexandrium minutum Penze estuary France
2014/5/19
During an intense (up to 33 X 106 cells L-1) Alexandrium minutum bloom in the Penze′ estuary (France), total NO3, NH4, and PO4 requirements of the bloom were, respectively, 184, 25, and 20 μmol L-1, w...
Iron requirements for dinitrogen- and ammonium-supported growth in cultures of Trichodesmium (IMS 101): Comparison with nitrogen fixation rates and iron:carbon ratios of field populations
Iron requirements nitrogen- and ammonium-supported growth cultures of Trichodesmium nitrogen fixation rates and iron field populations
2014/5/21
We quantified the relationships among the specific growth rate, intracellular iron content, and steady state iron uptake rate for cultures of the marine diazotrophic cyanobacterium Trichodesmium (IMS ...